Coffee Machine Water Filter Cartridge (Compatible with BREVILLE)

This is a coffee machine water purifying filter cartridge compatible with BREVILLE machines, made by Oltaven. It combines coconut-shell activated carbon with food-grade ion exchange resin to reduce chlorine, odour, scale-forming calcium and magnesium, and heavy metals before the water reaches the brew path. It is built for automatic, semi-automatic and commercial espresso machines, and for businesses that want the same cartridge under their own brand through OEM/ODM supply.

From Media to Finished Filter

Filtration media is the starting point, not the product. A finished cartridge is the result of a chain of decisions: which media grades to combine and in what ratio, how tightly the carbon is packed, how the resin bed is held in place, how the housing is formed, and how every joint is sealed. Each decision changes what the cartridge removes, how hard the machine's pump has to work, and how long the cartridge lasts. Oltaven sells the finished cartridge, so we take responsibility for that whole chain rather than for a bag of media.

The media in this cartridge work in sequence. Coconut-shell activated carbon has a fine pore structure and a high surface area, so it adsorbs chlorine and the organic compounds behind off-flavours quickly. Ion exchange resin then exchanges hardness ions for softer ones, which is what limits limescale build-up in the boiler and on the shower screen. If the carbon layer is too loose, water channels through it and chlorine passes; if it is packed too densely, resistance rises and flow drops. Forming and filling control that balance, which is why two cartridges with the same media list can behave very differently.

What Decides Finished Performance

Three outcomes matter to a coffee machine owner: how much is removed, how much pressure the cartridge costs, and how much water it can treat. All three are set during manufacturing.

• Efficiency depends on media grade and bed depth. A deeper, well-graded carbon bed gives water more contact time, so chlorine and odour removal is more complete. The ion exchange resin must also be correctly regenerated and proportioned to the hardness it is expected to treat.
• Resistance depends on how the media are packed and how the water is distributed inside the housing. Uniform flow across the whole cross-section keeps pressure drop predictable within the stated 20–120 psi (about 1.4–8.3 bar) working range.
• Capacity depends on how much active media the housing can hold and on the water it meets. Rated life is about 250 litres or 2–3 months, whichever comes first, and local water quality and use frequency will move that figure.
• Fit and sealing decide whether any of the above is delivered in practice. The housing is formed to the dimensions and connection of the original cartridge so it seats correctly, and the sealed body keeps water on its intended path instead of bypassing the media.

Filtration accuracy here is fine microporous interception: the cartridge blocks larger particles such as sediment and rust that would otherwise reach the machine, while the carbon and resin handle dissolved impurities. Because the cartridge is rated for cold water only, operating temperature is limited to 2°C–38°C.

Applications

The cartridge is used in automatic bean-to-cup machines, semi-automatic espresso machines and commercial coffee equipment where scale control protects the boiler. In offices, cafés and chains, changing cartridges on a schedule keeps taste consistent across machines and sites. It is also supplied as a private-label item: distributors and appliance brands order it with their own logo, packaging and documentation for their aftermarket programmes.

Because hardness varies widely between water supplies, the same cartridge can last noticeably longer in soft water than in hard water. For OEM buyers, the media ratio can be adjusted to the target market's typical water, which is one reason to discuss the destination market early in a project.

Technical Specifications

The Oltaven Factory and Certifications

Oltaven has more than 20 years of filtration product development and manufacturing experience and has developed over 1,000 filtration solutions, which is the base we work from when a customer needs a cartridge adapted to a new machine or market. Our plant in Zhongshan, Guangdong, China covers 50,000 m², including six cleanrooms with a combined area of 20,000 m², so cartridges are produced in a controlled environment. A CNAS-accredited laboratory supports testing of filtration efficiency, dust holding capacity and resistance, and reports accompany development and quality work. Our quality systems hold ISO 9001, ISO 14001 and ISO 45001 certification, and in 2024 we obtained IATF 16949 certification. Products meet REACH and RoHS requirements, with compliance documents available. We export to Europe, the United States, Japan, South Korea and other markets, and run IQC, IPQC and OQC checks across the process.

OEM/ODM Workflow

1. Requirement review: you share the machine model, cartridge dimensions or a drawing, target flow, water conditions, packaging needs and expected volume.
2. Solution proposal: our engineering team proposes media grade and ratio, housing structure and branding options, drawing on our library of over 1,000 filtration solutions.
3. Sampling: prototype or standard samples are produced for your testing, with performance data from our CNAS-accredited laboratory.
4. Validation: fit, flow and life are checked against your requirements before tooling and packaging artwork are finalised.
5. Production and quality control: automated lines handle volume output with IQC, IPQC and OQC checks; monthly capacity reaches millions of pieces.
6. Delivery: finished cartridges are packed to your specification and shipped from Zhongshan, Guangdong, China.

Start a Custom Project

Tell us the device model, the cartridge size or a drawing, the airflow or water flow you need, the operating conditions, and your planned quantity. Send these details through our contact page and our team will respond with a proposal for a finished cartridge that fits your machine and your market. We welcome long-term OEM and ODM partnerships.